A Lead-Acid Battery is a rechargeable electrochemical battery that uses lead dioxide (PbO₂) as the positive electrode, spongy lead (Pb) as the negative electrode, and a sulfuric acid (H₂SO₄) solution as the electrolyte. It is one of the oldest and most widely used battery technologies, known for its reliability, low cost, and ability to deliver high surge currents, making it ideal for automotive, backup power, and industrial applications.
